Serbian transliterator

translit-wip.js

(function() {

    var cyrillic = 'А_Б_В_Г_Д_Ђ_Е_Ё_Ж_З_И_Й_Ј_К_Л_Љ_М_Н_Њ_О_П_Р_С_Т_Ћ_У_Ф_Х_Ц_Ч_Џ_Ш_Щ_Ъ_Ы_Ь_Э_Ю_Я_а_б_в_г_д_ђ_е_ё_ж_з_и_й_ј_к_л_љ_м_н_њ_о_п_р_с_т_ћ_у_ф_х_ц_ч_џ_ш_щ_ъ_ы_ь_э_ю_я'.split('_')
    var latin = 'A_B_V_G_D_Đ_E_Ë_Ž_Z_I_J_J_K_L_Lj_M_N_Nj_O_P_R_S_T_Ć_U_F_H_C_Č_Dž_Š_Ŝ_ʺ_Y_ʹ_È_Û_Â_a_b_v_g_d_đ_e_ë_ž_z_i_j_j_k_l_lj_m_n_nj_o_p_r_s_t_ć_u_f_h_c_č_dž_š_ŝ_ʺ_y_ʹ_è_û_â'.split('_')

    function textNodesUnder(el) {
        var n, a = [],
            walk = document.createTreeWalker(el, NodeFilter.SHOW_TEXT, {
                    acceptNode: function(node) {
                        var temp = node;
                        if ( !parentsHaveAttribute(node,'notranslit') ) {
                            return NodeFilter.FILTER_ACCEPT
                        } else {
                            return NodeFilter.FILTER_REJECT
                        }
                    }
                },
                false);
        while (n = walk.nextNode()) {
            n.textContent = translit(n.textContent)
        }
    }

    function translit(string) {
        return string.split('').map(function(char) {
            var index = cyrillic.indexOf(char)
            if (!~index)
                return char
            return latin[index]
        }).join('')
    }

    function parentsHaveAttribute(element, attrib) {
        if (element.tagName != "HTML" && element.parentElement.hasAttribute(attrib) ) {
          return true
        }

        if (element.tagName != "HTML") {
            return element.parentElement && parentsHaveAttribute(element.parentElement, attrib);
        } else {
            return false;
        }

    }

    textNodesUnder(document);
})();